+ // Return when trace is full
+ if (traceLen + sizeof(iLen) + sizeof(timestamp_start) + sizeof(duration) + num_paritybytes + iLen >= TRACE_SIZE) {
+ tracing = FALSE; // don't trace any more
+ return FALSE;
+ }
+ // Traceformat:
+ // 32 bits timestamp (little endian)
+ // 16 bits duration (little endian)
+ // 16 bits data length (little endian, Highest Bit used as readerToTag flag)
+ // y Bytes data
+ // x Bytes parity (one byte per 8 bytes data)
+
+ // timestamp (start)
+ trace[traceLen++] = ((timestamp_start >> 0) & 0xff);
+ trace[traceLen++] = ((timestamp_start >> 8) & 0xff);
+ trace[traceLen++] = ((timestamp_start >> 16) & 0xff);
+ trace[traceLen++] = ((timestamp_start >> 24) & 0xff);
+
+ // duration
+ trace[traceLen++] = ((duration >> 0) & 0xff);
+ trace[traceLen++] = ((duration >> 8) & 0xff);
+
+ // data length
+ trace[traceLen++] = ((iLen >> 0) & 0xff);
+ trace[traceLen++] = ((iLen >> 8) & 0xff);
+
+ // readerToTag flag
+ if (!readerToTag) {
+ trace[traceLen - 1] |= 0x80;
+ }
+
+ // data bytes
+ if (btBytes != NULL && iLen != 0) {
+ memcpy(trace + traceLen, btBytes, iLen);
+ }
+ traceLen += iLen;
+
+ // parity bytes
+ if (parity != NULL && iLen != 0) {
+ memcpy(trace + traceLen, parity, num_paritybytes);
+ }
+ traceLen += num_paritybytes;
+
+ if(traceLen +4 < TRACE_SIZE)
+ { //If it hadn't been cleared, for whatever reason..
+ memset(trace+traceLen,0x44, 4);
+ }
+
+ return TRUE;
+}